LAN Monitoring에 Hijacking기법의 도입을 통한 인터넷 유해 정보로부터 사용자의 보호 시스템 개발

박형배,정중수 安東大學校 工業技術硏究所 1997 공업기술연구논문집 Vol.4 No.1

The Internet is emerging as a powerful tool in the area of information and communication technology. The WWW has been especially contributed to the increasement of the Internet demand because of its browser which has "Graphic User Interface". Nowadays number of hosts that supply harmful information such as pornographic materials, and the infringement of human rights is rapidly increased. Access to such materials is very easy. Therefore security system which will protect young users from access to harmful host is needed. This paper presents implementation of user protecting system with LAN monitoring based on hijacking method over TCP/IP network. This system has database about harmful hosts at the Internet and monitors that the user traffic over LAN get touch with the hosts. The system can not make the user access the harmful host because it can decide whether the host requested by the user is harmful or not according to monitoring the traffic over LAN.

급성 기관지염에 대한 Cefaclor의 치료 효과

박순규,여동승,이수걸,최광웅,이중길,신영기 최신의학사 1992 最新醫學 Vol.35 No.11

외상성 십이지장 손상

박상균,강중신,손수상 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.2

저자들은 1985 년부터 만 6년간 계명의대 외과학교실에서 체험한 외상성 십이지장 손상 환자 20례를 중심으로 임상적으로 관찰 분석한 결과 다음가 같은 결론을 얻었다. 21~40세가 11례(55%)로 가장 많았고, 평균연령은 35.5세 남녀비는 19:1이었다. 손상의 원인으로는 둔상이 18례(90%)였으며 관통상이 2례였고 둔상의 원인으로는 교통사고, 추락 및 폭력사고 순이었다. 손상부위는 제 2부가 15례로 가장 많았고 제3부, 제1부, 제4부 순이었다. 진단 방법으로는 단순 X-선 검사, 복부 전산화 단층촬영 및 gastrografin을 사용한 상부소화관 촬영이 도움이 되었다. Lucas 분류법에 의한 손상분류시 II형이 9례(45%)로 가장 많았다. 17례(85%)에서 총 34가지의 복강내 장기의 동반 수상이 있었으며 췌장, 신장이나 요관, 간장 및 후복막강내 혈종순이었다. 19례에서 개복하여 배액술을 시행하였고 단순봉합술이 12례(60%)로 가장 많았다. 8례(42%)에서 13가지의 술후 합병증이 발생했으며 폐장합병증이 4례로 가장 많았다. 사망은 2예(10%)였으며 사망원인은 다발성 장기손상에 의한 출혈성 쇼크 1례와 패혈증 및 다발성 장기부전 1례였다. Traumatic duodenal injury is a relatively rare surgical condition and remains as one of the most challenging problems to treat until now because of high morbidity and mortality. A retrospective analysis of 20 consecutive patients who sustained traumatic duodenal injury diagnosed by operation of radiologic examination during the 6 years from January, 1985 to Decomber, 1991 at department of surgery, Keimung University School of Medicine was reviewed. ·The age incidence was variable but it occurred most frequntly 3th & 4th decades and the sex incidence was 19:1 in favor of male. ·The majority of injury(90%) was blunt abdominal trauma ·Nineteen patients(95%) underwent celiotomy and only 3 case(15%) had an isolated duodenal injury. ·In terms of location of injured duodenum, 2nd portion was injured most frequently and followed by 3rd, 1st and 4th in order of frequency. ·The severity of injury was classified to the Lucas classification, and their surgical managements varied from simple drainage to combined pancreaticoduodenectomy. ·The postoperative complications were pulmonary complications (4), wound infection (3), duodenal fistula (2), intraabdominal abscess (2), wound disruption (1) and stress ulcer bleeding (1), in order of frequency. ·2 cases were died because of massive bleeding and sepsis with multiple organ failure.

해수에서 분리한 Vibrio sp. M-96 균주의 열감수성 alkaline phosphatase 성질

박문경,진덕희,김중균,공인수,김광현,홍용기 동의대학교 기초과학연구소 1997 基礎科學硏究論文集 Vol.7 No.1

A thermolabile alkaline phosphatase has been purified through steps of osmotic shock, ammonium sulfate salting-out, and DEAE-cellulose chromatography from the cultured broth of the marine Vibrio sp. M-96 strain. The optimal temperature for the enzyme activity was 35℃. The optimal pH was pH 11.0, and the range of pH stability was pH 10.4 to 12.0. Thermal inactivation occured within 6 minutes at 60℃. The enzyme was considerably inactivated by 0.1mM concentrations of Hg^2+, Ni^2+ and Zn^2+, whereas activated up to 234% by 1mM of Mn^2+. The activation energy and deactivation energy by the Arrhenius equation were 4.02 Kcal/mol and 9.09 Kcal/mol, respectively. The Km and Vmax values of the enzyme for p-nitrophenylphosphate were found to be 0.0465mM and 0.001335mM/min. respectively. Active from of the enzyme had a molecular weight of 57,000 dalton determined by the Sephadex G-200 gel filtration method.

Relevance feedback을 이용한 감성언어 기반 영상 검색

박중수,엄경배 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-

We propose an on-line query mechanism for emotion-based similarity retrieval of images in database. It uses emotional languages for the first search. We know that it successfully catches the user's emotion. For the second search, we use relevance feedback algorithm to reflect the gap between the user's emotion and computer calculated contents. Relevance feedback successfully analyzes the data that is user's estimation of images and reduces the gap between user and computer. The features and similarity measures are adopted from MPEG-7 color descriptors which are proper retrieval of large multimedia databases. We use 286 images for experiment which are corrected from internet. The result shows that the system is successful.

Indomethacin 子宮內 揷入이 卵巢와 血漿 Hormone에 미치는 影響에 關한 實驗的 硏究

朴俊相,蘿重烈,李壽鍾 고려대학교 의과대학 1983 고려대 의대 잡지 Vol.20 No.3

The effects of intrauterine administration of indomethacin on the ovary and plasma steroid hormones were studied. Pseudopregnancy was induced in seven rabbit by the injection of 50 ug of ethinyl estradiol and 100 IU of hCG subcutaneously. And these seven pseudopregnant rabbits served as control group. In the indomethacin-treated group, pseudopregnancy was induced with 50 ug of ethinyl estradiol and 100 IU of hCG, and indomethacin was implanted in uterus on Day seven under laparotomy and uterine incision with pentothal anesthesia. The plasma estrogen and progesterone level was determined by radioimmunoassay with about three days interval in both control and indomethacin-treated group. The uterus and ovaries were submitted to histologic study on Day 30. The following results were obtained; 1. Serum progesterone level in pseudopregnant rabbis was decreased from 15th day of pseudopregnancy and returned to normal values by 18th day, while, in indomethacin-treated group, the high level of serum progesterone was maintained by 7 more days then control group. 2. Serum estrogen levels of pseudopregnant rabbit was higher than pretreatment state and returned to normal value by 30th day, while, in indomethacin-treated group, the serum estrogen values was higher than control group and did not return to normal value by 30th day. 3. The corpus luteum regresses from 15th day in control group, but in indomethacin-treated group, the corpus luteum was maintained till 25th day. The follicles are 4 to 5 in number in control group and 9 to 15 in indomethacin-treated group. The endometrium was papillary growth pattern in control group, but it was functionless in indomethacin-treated group. It seemed that the prostaglandin from the endometrium acts on corporal regression, but it's action on the follicles was different from that on corpus luteum.

컨테이너 운송용 AGV의 운동궤적에 관한 연구

박정보,김민주,이승수,김중완,전언찬 한국공작기계학회 2004 한국생산제조학회지 Vol.13 No.5

In this study, we have developed the simulation tool in order to investigate driving trajectory of AGV for container transport. AGV for container transport is different from the indoor AGV in that it is a large size structure at being loaded the weight of 40 ton. And AGV for container transport is applied to front wheel steering, rear wheel steering, all wheel steering, and crap steering. Therefore, we have developed the simulation tool considering dynamic problems and a center of turning in accordance with fourth ways of steering mode. As the result of this study, we have confirmed that this tool is useful and cost-effective in the dynamic analysis or large size vehicles. Also, it is useful to calculate the minimum radius of turning for large size vehicles.

Boosting algorithm을 이용한 다중 질의 영상검색

박중수,엄경배 국립7개대학공동논문집간행위원회 2002 공업기술연구 Vol.2 No.-

Content-based image retrieval uses extracted image contents. But if the contents are consist of many features then the retrieval process may speed down. In this paper, we use boosting algorithm to reduce the redundancy of features. We experiment 286 wallpapers and get the successful result.

Pocine Adenovirus-3의 E1B Region의 鹽基序列 分析

朴鍾賢,宋載永,李重馥,玄芳勳,安東濬,車相昊,裵用泰,姜永源,Reddy, P S,全茂炯,安壽煥 충남대학교 생물공학연구소 1999 생물공학연구지 Vol.7 No.-

돼지 아데노바이러스(PAV-3). 6618주의 EIB region이 包含되어 있는 map unit 4.0에서 9.7까지의 유전자에 대한 1,984 bp의 염기서열을 決定하였으며, 이 結果를 알려진 여러 아데노바이러스 유전자와 비교하여 다음과 같은 결과를 얻었다. 1. PAV-3의 EIB유전자는 10개의 ORF로 구성되어 있으며, 그 중 아데노바이러스의 단백질과 유사성이 있는 것은 ORF1, ORF2 및 ORF3이었다. ORF1은 Ad41의 19kd 와 BAV-2에서의 EIB ORF2에서의 아미노산의 一致率은 각각 32%와 31%이었다. 2. ORF2는 Ad2 55kd protein과 tupaia adenovirus 44kd protein가 각각 34%로 아미노산 一致率이 가장 높았으며, Ad41의 52kd protein. BAV-3의 EIB ORF3에서도 33%의 一致率을 보였다. 3. ORF1은 61-666 uncleotide (606 bp), ORF 2에서는 429-1,850 uncleotide (1,422 bp)의 부위로 각각 202, 474 a.a로 構成되었으며, 예상되는 분자량은 20 kd와 52 kd이었다. 4. ORF3는 hexon-associated pIX유전자로 추정되며 내부에 1개의 polyadenylation signal(ATAAA)이 1938-1942 uncleotide에 위치하였으며, 이 부위는 TATA box (1937-1942 uncleotide)와 중복되어 존재하였다. Porcine adenovirus type 3 (PAV-3) does not cause severe infection in pigs. Adenovirus has been suggestive of live vaccine vector carrying foreign gene. One of insertion regions is delayed early (EIB) region. However, EIB region of PAV-3 has not been molecularly characterized to date. Nucleotide sequence of EIB of PAV-3 was determined. The EIB region was composed of 1,984 bp and located between 4.0 and 9.7 map units. Three potential open reading frames(ORFs) with low level of homology to other adenoviruses and a polyadenylation signal were identified in the rightward direction of genome. The nucleotide and the predicted amino acid sequences of EIB were compared to those of human and animal adenoviruses. One of the three potential ORFs. ORF1 encoded a polypeptide homologous to bovine adenovirus type 2(BAV-2) ORF2 and human adenovirus type 41(Ad41) 19 kd protein. ORF2 encoded a polypeptide homologous to human adenovirus type 2(Ad2) 55 kd protein, bovine adenovirus type 3(BAV-3) ORF3 and porcine adenovirus type 4(PAV-4) ORF2. The predicted protein of ORF1 had homology to those of Ad41 and BAV-2 with 32 and 31% respectively, whereas the deduced protein of ORF2 had homology to those of Ad2. BAV-3 and PAV-4 with 34, 33 and 29%, respectively.

金谷面一帶의 나방相에 대하여

朴重錫,柳容秀 慶尙大學校 기초과학연구소 1986 基礎科學硏究所報 Vol.2 No.-

1982년 3월 7일 부터 12월 5일 까지 40주 동안 慶尙南道 晋陽郡 金谷面一帶의 나방相을 조사한 결과는 다음과 같다. 1. 조사된 나방類(Heterocera)는 총 19科 256屬 352種 5,655 개체가 채집 동정되었으며, 이 중 4科 15種은 韓國末記錄種이었다. 2. 월별, 계절별 출현개체수는 7월과 여름에 각각 가장 많이 채집 되었다. 3. 나방류의 출현양상은 년중 1회, 1개체만 출현한 종, 계절별로 봄, 여름, 가을에만 각기 출현한 종등 크게 6가지 유형으로 고찰되었다. 4. 優占種은 곧은띠비단명나방(Herculia glaucinalis Linne)이었으며, 優占科는 밤나방科(Noctuidae)였다. 5. 생물지리학적 분포계열은 舊北區系의 종이 전체의 73%로 가장 우세 하였다. 6. 시간별 출현양상은 21시~23시 사이에서 활발하였으며, 그 중 22시에서 가장 활발 하였다. 계절별로는 봄은 23시, 여름은 22시, 가을은 21시에서 가장 많이 채집 되었다. 7. 기온별 출현양상은 18℃~24℃ 사이에서 활발하였으며, 19℃와 24℃에서 각각 가장 많이 채집 되었다. 24℃까지는 기온이 높을수록 유의적(P<0.05)으로 출현 개체수가 증가되었다. 8. 습도별 출현양상은 70% 대에서 부터 다소 출현하기 시작하여 90% 대에서 가장 활발하였으며, 습도가 높아질수록 유의적(P<0.01)으로 출현이 증가 되었다. Seasonal changes of the moth fauna in relation to time, air temperature and relative humidity were investigated in Kuˇmgok-myon, Kyoˇngsangnam-do, Korea from(March 7, to December 5, 1982. This study was based on an examination of 5,655 individuals. 1. The collected and identified moths were 352 species, 256 genera, 19 families, and the dominant species and family were Herculia glaucinalis; Linne and Noctuidae, and the unrecorded species in Korea were 15. 2. Biogeographically the ratio between the Paleoarctic and the Oriental species race was 4 to 1, Kumgok-myoˇn belongs to the Paleoarctic. 3. Appearance pattern was classified to 6 types according to the collecting frequency, and the collecting numbers of individuals were most abundant in July and through summer. 4. The moths appeared most abundantly from 21 to 23 o'clock through the year, and at 23, 22 and 21 o'clock in spring, summer and autumn, respectively. 5. The collected numbers of individuals were most at 18℃∼24℃. 6. The collected numbers of individuals were none below 50% of the relative humidity, increased from 70%, and most at 98%.